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Documentos Principais

A1075

Sigma-Aldrich

Amyloid β Protein Fragment 1-40

≥90% (HPLC), powder

Sinônimo(s):

Aβ40

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About This Item

Fórmula empírica (Notação de Hill):
C194H295N53O58S
Número CAS:
Peso molecular:
4329.80
Número MDL:
Código UNSPSC:
12352202
NACRES:
NA.32

Nível de qualidade

Ensaio

≥90% (HPLC)

Formulário

powder

cor

white

solubilidade

1% acetic acid: 1 mg/mL
saline: insoluble

nº de adesão UniProt

temperatura de armazenamento

−20°C

Informações sobre genes

human ... APP(351)

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Amino Acid Sequence

Asp-Ala-Glu-Phe-Arg-His-Asp-Ser-Gly-Tyr-Glu-Val-His-His-Gln-Lys-Leu-Val-Phe-Phe-Ala-Glu-Asp-Val-Gly-Ser-Asn-Lys-Gly-Ala-Ile-Ile-Gly-Leu-Met-Val-Gly-Gly-Val-Val

Descrição geral

Amyloid β Protein Fragment 1-40 (Aβ40) is derived from the amyloid-β protein (Aβ), which is mapped to human chromosome 21q21.3. Aβ40 is predominantly present in the vascular amyloid deposits. Aβ40 comprises of C-terminal membrane insertion domain. It shows structural transition from random coil to a α-helical structure in a water-micelle medium.

Aplicação

Amyloid β Protein Fragment 1-40 has been used:
  • in the temperature based conformational studies using Fourier transform infrared/differential scanning calorimetry (FT-IR/DSC) studies
  • as a reference standard in sandwich-type enzyme immunoassay for quantifying amyloid A4 protein in cerebrospinal fluid of patients with head trauma
  • as a component of embryonic stem cell medium to inhibit amyloid deposition in fibroblasts

Ações bioquímicas/fisiológicas

Amyloid β Protein Fragment 1-40 (Aβ40) forms cation based ion channels.
Amyloid β-protein is neurotrophic and neurotoxic in vivo and in vitro in human and rat neuronal cell cultures. β-Amyloid peptides (amino acids 1-42 and 1-43) are the major constituents of senile plaques and neurofibrillary tangles that occur in the hippocampus, neocortex, and amygdala of patients with Alzheimer′s disease.

Reconstituição

For maximal biological activity, dilute the stock in calcium-free PBS to 1 mg/ml and incubate at 37 °C for 4 days.

Outras notas

Lyophilized from 0.1% TFA in H2O

Código de classe de armazenamento

11 - Combustible Solids

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Equipamento de proteção individual

Eyeshields, Gloves, type N95 (US)


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Visite a Biblioteca de Documentos

Solution Structure of Amyloid beta-Peptide (1- 40) in a Water- Micelle Environment. Is the Membrane-Spanning Domain Where We Think It Is?
Coles M, et al.
Biochemistry, 37(31), 11064-11077 (1998)
D R Howlett et al.
Neurodegeneration : a journal for neurodegenerative disorders, neuroprotection, and neuroregeneration, 4(1), 23-32 (1995-03-01)
The behaviour of synthetic batches of beta-amyloid (beta A) 1-40 peptide in solution has been studied. The effects of beta A1-40 on a PC12 cell toxicity assay was dependent upon the time of preincubation of an aqueous solution of the
H Funato et al.
The American journal of pathology, 152(4), 983-992 (1998-04-18)
Amyloid beta-protein (Abeta) is the major component of senile plaques that emerge in the cortex during aging and appear most abundantly in Alzheimer's disease. In the course of our immunocytochemical study on a large number of autopsy cases, we noticed
M Citron et al.
Proceedings of the National Academy of Sciences of the United States of America, 93(23), 13170-13175 (1996-11-12)
Cerebral deposition of the amyloid beta protein (A beta) is an early and invariant feature of Alzheimer disease (AD). Whereas the 40-amino acid form of A beta (A beta 40) accounts for approximately 90% of all A beta normally released
Diversity of amyloid beta protein fragment [1-40]-formed channels
Kourie JI, et al.
Cellular and Molecular Neurobiology, 21(3), 255-284 (2001)

Artigos

Alzheimer's disease (AD) is the most common cause of dementia in the elderly and is characterized by gradual loss of cognitive functions.

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